Home / 20,301.24-30,464.82-7,831.32

Finding the Fourth Proportional to 20,301.24, 30,464.82 and 7,831.32

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Solution

The fourth proportional to 20,301.24, 30,464.82 and 7,831.32 is: 11,751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.24 : 30,464.82 = 7,831.32 : x
  2. Step 2: Convert to fraction form
    20,301.24/30,464.82 = 7,831.32/x
  3. Step 3: Cross multiply
    20,301.24x = 30,464.82 × 7,831.32
  4. Step 4: Simplify right side
    20,301.24x = 238,579,754.16
  5. Step 5: Solve for x
    x = 238,579,754.16/20,301.24
  6. Step 6: Final answer
    x = 11,751.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.